Bug 1265830

Summary: Disabling flat volumes triggered master volume level to reach 100% while trying to decrease/increase it
Product: [Fedora] Fedora Reporter: Germano Massullo <germano.massullo>
Component: pulseaudioAssignee: Lennart Poettering <lpoetter>
Status: CLOSED UPSTREAM QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: jkysela, kevin, lkundrak, lpoetter, rdieter, than, wtaymans
Target Milestone: ---Keywords: MoveUpstream, Reopened
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2016-07-19 18:24:20 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
pulseaudio logs none

Description Germano Massullo 2015-09-23 21:32:08 UTC
Created attachment 1076315 [details]
pulseaudio logs

Description of problem:
Days ago I disabled PulseAudio's flat volumes due PulseAudio:
- crackling audio trouble #1264177
- inability to correctly handle application bad behaviour about volume levels #1265267

Disabling PulseAudio's flat volumes solved the mentioned problems, but introduced a new one.
I usually increase / decrease volume level by using mouse wheel on KMix icon.
Both actions sometimes trigger the master volume to 100% level. While collecting PulseAudio logs, I managed to reproduce (twice) the problem:
Note: each mousewheel step increases or decreases volume level by a 5%.

===First occurrence of the problem===
At line number 1359 you can see the volume setted at 70%:
A few moments later, I tried to increase it at 75%, but the volume level has been pushed to 100% (line number 1459).

===Second occurrence of the problem===
At line number 18000 you can see the volume setted at 40%:
A few moments later, I tried to increase it at 45%, but the volume level has been pushed to 100% (line number 18016).


Since on the logs, every volume level change has the form of

D: [alsa-sink-Multichannel] alsa-sink.c: Requested volume: front-left: 65536 / 100% / 0,00 dB,   front-right: 65536 / 100% / 0,00 dB

that "Requested volume" makes me think about PulseAudio being requested to set the volume to 100%. So in the dubt I added in CC some guys of KDE SIG and alsa.

I can quite easly reproduce the problem, so feel free to ask me to do any test.


Version-Release number of selected component (if applicable):
pulseaudio-6.0-8.fc22.x86_64
kmix-15.04.0-1.fc22.x86_64

Comment 1 Fedora End Of Life 2016-07-19 18:00:00 UTC
Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.

Comment 2 Rex Dieter 2016-07-19 18:24:20 UTC
There's already an upstream report, let's continue tracking it there.